拱形棚洞受落石冲击的模型试验研究

王爽1 周晓军1 罗福君1 姜波2 朱勇2

振动与冲击 ›› 2017, Vol. 36 ›› Issue (12) : 215-222.

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PDF(1719 KB)
振动与冲击 ›› 2017, Vol. 36 ›› Issue (12) : 215-222.
论文

拱形棚洞受落石冲击的模型试验研究

  • 王爽1 周晓军1 罗福君1 姜波2 朱勇2
作者信息 +

Experimental study on performance of arch shaped shed tunnel due to impact of rockfall

  • Wangshuang1, Zhouxiaojun1, Luofujun1, Jiangbo2, Zhuyong2
Author information +
文章历史 +

摘要

通过室内模型试验对拱形棚洞抵抗落石冲击的力学性能进行了研究,重点分析了棚洞的拱圈、立柱和其内部钢筋在不同落石冲击能量、不同缓冲垫层厚度、不同冲击位置下的动力响应;分析了不同冲击工况下落石冲击力、拱形棚洞位移的变化规律;研究了拱形棚洞受落石冲击的破坏形态及其薄弱区域;并给出了相关加强措施和轻质土缓冲垫层的适宜厚度建议值。

Abstract

Model test is used to study the impact resistance of arch shaped shed tunnel, which mainly analyzes the dynamic response rules of arch, upright column and interior steel under diverse impact energy, cushion with diverse thickness, diverse impact locations; The rules of rockfall impact force and displacement of arch shaped shed tunnel under diverse impacting condition are analyzed; Failure mode and weak area of arch shaped shed tunnel are analyzed; The relative strengthening measures and appropriate thickness range of light soil cushion are given.

关键词

拱形棚洞 / 模型试验 / 落石冲击 / 轻质土 / 动力响应

Key words

Arch shed shaped tunnel / Model test / Rockfall impact / Light soil / Dynamic response

引用本文

导出引用
王爽1 周晓军1 罗福君1 姜波2 朱勇2. 拱形棚洞受落石冲击的模型试验研究[J]. 振动与冲击, 2017, 36(12): 215-222
Wangshuang1, Zhouxiaojun1, Luofujun1, Jiangbo2, Zhuyong2. Experimental study on performance of arch shaped shed tunnel due to impact of rockfall[J]. Journal of Vibration and Shock, 2017, 36(12): 215-222

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